duphaston & heragest suppository

my ob prescribed duphaston (200 tablets) 3 tablets a day, because i have a light vaginal bleeding (6th week of pregnancy), i have taken it 6-14 week then after taking it i thought thats the end then she prescribed on my 14th week heragest suppository, i asked till when will i take it she said that i should take it till my last trimester... she said because of my age 40.. its my second pregnancy after 11 years.. isn't it too much? im thinking that i should ask second opinion or i just worry too much that too much medicine will have bad effect to the baby?#advicepls #theasianparentph